$$\frac{3}{4}x-\frac{6}{5}=\frac{7}{10}$$
$x = \frac{38}{15} = 2\frac{8}{15} \approx 2.533333333$
$$\frac{3}{4}x=\frac{7}{10}+\frac{6}{5}$$
$$\frac{3}{4}x=\frac{7}{10}+\frac{12}{10}$$
$$\frac{3}{4}x=\frac{7+12}{10}$$
$$\frac{3}{4}x=\frac{19}{10}$$
$$x=\frac{19}{10}\times \frac{4}{3}$$
$$x=\frac{19\times 4}{10\times 3}$$
$$x=\frac{76}{30}$$
$$x=\frac{38}{15}$$
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